JPS57211421A - Wire cut discharge machining power source equipment - Google Patents

Wire cut discharge machining power source equipment

Info

Publication number
JPS57211421A
JPS57211421A JP56072579A JP7257981A JPS57211421A JP S57211421 A JPS57211421 A JP S57211421A JP 56072579 A JP56072579 A JP 56072579A JP 7257981 A JP7257981 A JP 7257981A JP S57211421 A JPS57211421 A JP S57211421A
Authority
JP
Japan
Prior art keywords
switching
capacitor
discharge machining
power source
terminal voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP56072579A
Other languages
Japanese (ja)
Other versions
JPS6247134B2 (en
Inventor
Shunzo Izumiya
Haruki Obara
Original Assignee
Fanuc Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fanuc Ltd filed Critical Fanuc Ltd
Priority to JP56072579A priority Critical patent/JPS6247134B2/ja
Publication of JPS57211421A publication Critical patent/JPS57211421A/en
Publication of JPS6247134B2 publication Critical patent/JPS6247134B2/ja
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23HWORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H7/00Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/02Wire-cutting
    • B23H7/04Apparatus for supplying current to working gap; Electric circuits specially adapted therefor

Abstract

PURPOSE: To improve machining speed by controlling charge voltage of the capacitor, in a wire cut discharge machining power source equipment.
CONSTITUTION: A switching element of a transistor 14 or the like is turned ON or OFF in its control. At the time of the ON condition, a capacitor 15 is charged, and its terminal voltage is applied between a wire electrode 17 and a work 16, so that discharge machining is performed. Besides, an auxiliary switching element of a transistor 24 or the like is connected in parallel with the switching element, and when a means integrated by a comparator 43, a monostable circuit 45, etc. detects that the terminal voltage of the capacitor 15 has come to be high level H2, the switching element is made into the OFF condition. Thereafter, when the comparator 41 detects that the terminal voltage of the capacitor 15 is abated to intermediate level H1 because of the leakage current between the wire terminal 17 and the work 16, the auxiliary switching element is made into the ON condition. Further, when the comparator 43 and a monostable circuit 44 detect that, discharge is produced and the terminal voltage of the capacitor 15 is abated to low level L1, the auxiliary switching element is turned OFF, and ON/OFF control of the switching element is initiated.
COPYRIGHT: (C)1982,JPO&Japio
JP56072579A 1981-05-14 1981-05-14 Expired JPS6247134B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56072579A JPS6247134B2 (en) 1981-05-14 1981-05-14

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP56072579A JPS6247134B2 (en) 1981-05-14 1981-05-14
PCT/JP1982/000163 WO1982004001A1 (en) 1981-05-14 1982-05-12 Wire cut electric discharge machining power source
US06/456,060 US4469927A (en) 1981-05-14 1982-05-12 Power source arrangement for wire-cut, electric discharge machining
EP82901427A EP0081587B1 (en) 1981-05-14 1982-05-12 Wire cut electric discharge machining power source
DE8282901427T DE3272125D1 (en) 1981-05-14 1982-05-12 Wire cut electric discharge machining power source
KR8202101A KR860000619B1 (en) 1981-05-14 1982-05-14 Wire-cut electric discharge machining device

Publications (2)

Publication Number Publication Date
JPS57211421A true JPS57211421A (en) 1982-12-25
JPS6247134B2 JPS6247134B2 (en) 1987-10-06

Family

ID=13493426

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56072579A Expired JPS6247134B2 (en) 1981-05-14 1981-05-14

Country Status (6)

Country Link
US (1) US4469927A (en)
EP (1) EP0081587B1 (en)
JP (1) JPS6247134B2 (en)
KR (1) KR860000619B1 (en)
DE (1) DE3272125D1 (en)
WO (1) WO1982004001A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0521689B2 (en) * 1983-07-24 1993-03-25 Inoue Japax Res
JPH0429491B2 (en) * 1984-06-22 1992-05-19
US5126525A (en) * 1988-11-01 1992-06-30 Sodick Co., Ltd. Power supply system for electric discharge machines
US5089680A (en) * 1991-05-28 1992-02-18 T-Star Industrial Electronics Corporation Indexed rotatable current pick-up for a travelling wire electrical discharge machining apparatus
US5384444A (en) * 1992-12-23 1995-01-24 Basix Technologies Ltd. Sleeve forming wire passageway around pickup
US5430268A (en) * 1992-12-23 1995-07-04 Basix Technologies Ltd. Method and apparatus for adjusting and replacing EDM components from the guide assembly working end
US5380973A (en) * 1992-12-23 1995-01-10 Basix Technologies Ltd. Current pickup indexing apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55101336A (en) * 1979-01-30 1980-08-02 Fanuc Ltd Power source for wire-cut discharge working device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6059096B2 (en) * 1978-04-27 1985-12-23 Mitsubishi Electric Corp
JPS6216771B2 (en) * 1978-05-10 1987-04-14 Mitsubishi Electric Corp
JPS6317569B2 (en) * 1979-10-05 1988-04-14 Fanuc Ltd
JPS5689434A (en) * 1979-12-22 1981-07-20 Fanuc Ltd Power source to wire-cut electric discharge machining

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55101336A (en) * 1979-01-30 1980-08-02 Fanuc Ltd Power source for wire-cut discharge working device

Also Published As

Publication number Publication date
US4469927A (en) 1984-09-04
EP0081587A1 (en) 1983-06-22
KR860000619B1 (en) 1986-05-24
DE3272125D1 (en) 1986-08-28
EP0081587B1 (en) 1986-07-23
EP0081587A4 (en) 1984-08-10
KR830009890A (en) 1983-12-24
WO1982004001A1 (en) 1982-11-25
JPS6247134B2 (en) 1987-10-06

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